ok use a CCI 250 primer start at 65gr AR2213SC and workmup to your max 68gr should give around 2400fps.

Load the projectiles out as far as you can making them just into the lands 10thou or the max length that they will still fit in your Sako mag. Sierra reccomends 3.410 oal but the longer you can load them the greater the powder capacity of the case and you then can work the loads up heavier.